Cutler has used roids and gh extensively. Using only GH won’t allow you to get that big. But HGH releases a cascade of otehr chemicals that can upregulate the number of ARs so you can then use more steroids. Using steroids alone will allow you to get pretty big whereas HGH alone won’t But you combine the two and you may attain the proportions of bodybuilders. The fact of the matter is that all pro bbers use hgh and steroids nearly year round and at doses enough for several people. Even with all these surplus chemicals that cause growth there isn’t really anyy penis growth.
The interesting thing is that during puberty the release of these hormones does cause the penis to grow. But for whatever reason there is a down regulation(lessening) of androgen receptors(ARs) in the penis. This may occur in response to the chemicals, no one really knows. So you can injecting steroids into your penis but they won’t be able to bind to the tissues and cause growth, otherswise bbers would have huge dicks.
HGH may repair the ligaments faster so it may impede PE gains but I highly doubt it. One could try injecting lr3 igf-1 as it does cause hyperplasia, cell splitting and might possibly increase growth. It would require months of use if not a half year which wuld be cost prohibitive and possibnly dangerous and I doubt the gains would be worth the costs.